Murrill: Polyporaceae of North America 475 



Hymenophore annual, epixylous, sessile, dimidiate, simple or 

 imbricate, rather large; surface white, anoderm, sodden and bibu- 

 lous ; context white, duplex, spongy above, firm below ; hymenium 

 concolorous, tubes thin-walled ; spores smooth, hyaline. 



r 



Synopsis of the Korllt American species 



Context coarsely fibrous ; tubes medium; plant common on coniferous wood. 



S. borcalis. 

 Context finer ; tubes smaller ; plant found on deciduous wood. S, gahctifuts. 



m 



Spoxgipellis borealis (Fr.) Pat. Tax. Hymen. 84. 1900 

 Polyponts borealis Fr. Syst Myc. i : 366. 1821. 



Described from material collected on trunks of Abies in the 

 mountains of Smoland as follows : 



" R albus, pileis fibroso-suberosis moUibus subvillosis, demum 

 subfulventibus, poris tenuibus inaequalibus. 



, ** Recens inodorus, siccus odorem aniseum dcbilem spargit 

 Inibricatu?5, subconcrescens, 2 unc. & ultra latus &: crassus,. 

 superne convexus, nunc velutinus, nunc strigosus, margine acuto, 

 subtus planus. Fori albi, lacerati, sinuoso & subrotundi, angustis- 

 simi, tubulos longos formant." 



In the Elenchus, Fries separates two v^arieties, inonla)ms and 

 spathidatus, and notes that the species is extremely abundant on 

 fir trunks in the mountains of Omberg. 



This plant, although well known in Europe and fairly common 

 m the northern parts of America, is still very imperfectly known 

 by many of the botanists and most o{ the collectors in this 

 country. It occurs on coniferous trees only, being found most 

 frequently in America on the hemlock. Much more needs to be 

 learned of its distribution. From what is known of it in Europe, 

 one would expect to find it throughout North America as far 

 south as Virginia, but American collections are very meager, as 

 the following will show ; 



Finland, Karsteu ; Sweden, Romcll ; German}^ Allcscher ; 

 ^yvo\^ Bresadoia ; Scotland, Berkeley; Canada, Dearness ; New 

 York, Cook, Atkinson^ Murrill, Mrs. Livingston; Pennsylvania, 

 Gentry^ Stevenson. 



Spoxgipellis galactinus (Berk.) Pat. Tax. Hymen. 84. 1900 



Polyporus galaetinns Berk. Lond. Jour. Bot. 6: 321, 1847. 



Collected by Lea on rotten trunks near Waynesviile, Ohio, in 

 the autumn of 1S44 and thus described by Berkeley : 



